grafting polymerization was a valuable method for the modification of the chemical and physical properties of polymer surfaces. in this paper, the grafting of cationic vinyl monomer with quaternary ammonium groups, methacryloxyethyltrimethyl ammonium chloride (dmc), onto the isotactic polypropylene (ipp) granule was performed by suspension solid-state grafting process. the technique offers new ...

Cotyledons of Light-grown soybean (GbvJne mar L. var Wayne) seedlings were used as a model system to study the possibility that aging requires qualitative changes in protein synthesis. Cotyledons reached a final stage of senescence and then abscised about 22 days after imbibition. Cotyledon senescence was reversed at 20 days after germination by epicotyl removal. Thereafter, the cotyledons rega...

Watermelon [Citrullus lanatus (thumb.) Matsum and Nakai] cv. Charleston gray was grafted onto three rootstocks: Cucurbita pepo, Lagenaria siceraria and (Cucurbita maxima x C. moshata). The non grafted watermelon plant was used as control. In this experiment efficiency of two kinds of grafting methods: Tube grafting and Hole insertion grafting and it was found that, Hole insertion grafting gave ...

In recent years, fat grafting has become a popular method for clinically correcting soft tissue deformities. In order to increase fat graft viability a variety of modifications have been made to current grafting procedures including cell-assisted lipotransfer (CAL), structural fat grafting, fat grafting mixed with adipose stem cells (ASCs), fat grafting mixed with platelet rich plasma (PRP) and...

Development of the cotyledonary region in Chamaesyce maculata is described from germination of the seed through formation of the dense mat of branches which characterize this common weed. The cotyledonary node is trilacunar with split-lateral traces. Epicotyl development is limited to a pair ofleaves ("V-leaves") inserted directly above and decussate to the cotyledons. The two V-leaves are also...

The treatment of non union and delayed union of fractures and also defects resulting from bone cysts or bone tumors by bone grafting is reported and also we have used it. In these Papers the results of bone grafting for surgical treatment of 23 war injured patients with bone lost is reported, and our results were good. 

background: age is one of the most important factors that have consistently emerged as the most potent predictors of mortality and morbidity after coronary artery bypass graft (cabg) surgery. however, early results of cabg in young patients in comparison with elderly ones have been different in previous surveys. the aim of this study was to compare short-term mortality and morbidity in young ve...